One of the options is IPT4018 keys "transfer" and I have the following problem, I received a call and I wish to transfer to another extension IPT4018/IP shows me on screen "transfer rejected." This problem occurs to me only with IP phones. The option to transfer me works well with Analog Set with Flash option.
Now check the basic settings and also persists preoblema.
From already thank you very much to all who could help me!